From owner-freebsd-hackers@FreeBSD.ORG Sat Nov 23 14:08:09 2013 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id A552A39B for ; Sat, 23 Nov 2013 14:08:09 +0000 (UTC) Received: from nm27-vm1.bullet.mail.bf1.yahoo.com (nm27-vm1.bullet.mail.bf1.yahoo.com [98.139.213.148]) by mx1.freebsd.org (Postfix) with SMTP id 4B29129C9 for ; Sat, 23 Nov 2013 14:08:08 +0000 (UTC) Received: from [66.196.81.173] by nm27.bullet.mail.bf1.yahoo.com with NNFMP; 23 Nov 2013 14:05:03 -0000 Received: from [98.139.213.8] by tm19.bullet.mail.bf1.yahoo.com with NNFMP; 23 Nov 2013 14:05:03 -0000 Received: from [127.0.0.1] by smtp108.mail.bf1.yahoo.com with NNFMP; 23 Nov 2013 14:05:03 -0000 X-Yahoo-Newman-Id: 196499.76039.bm@smtp108.mail.bf1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: APb89qgVM1nxo8iK80PQAcD3aS3OiynBKVpX3_FN0UNo4w3 C5iOedsrQ4ybfkiQgdZat2ZZ6J.XxuS_rX0f0RHq99NeVYarcUQvlP0KWcMm bwNRtr22MZCmz0ne5ujw5ImZBA6wS_Y1YAng8BOVl9NSH72_mkRwzld41652 .sU35rD2ystsnT7.JRWTEKaz7XI5ILJkcjG65LkHSHUFuBvpyzYWgAaSUbrn hiavz_gVvbGrZVtSfSTfi1qk2b84Iv.MTmRiE_Vxlny0r4T4.4l1oqF_2329 74r.by70BfW241icV_0VMH4NQCQwWDLDmlJiWNXeVeIu8RKf77lZwHrd6tzN 8aCLKylKR..RjfRRiWQlBdqCkLp09dmSl9CLkzGN9PK.znlwWe7JD83mwOXE bm4bJ8T4JCJGYDfq5XPokj4YLIxqHu5jqu6af9M6CtC16vXdV.KGcQ_93faQ h_c7njKc52Zqgsg0I4CpWR73PUqhbpfD.ca0Ffz.0Br9jxFm_F9qee5lmTKV eBfznv.lKxJHa_hlNlYwTxG7gX8aYpxw51vWzMyU0w7Nn2Z9oIX3Nvw-- X-Yahoo-SMTP: xcjD0guswBAZaPPIbxpWwLcp9Unf X-Rocket-Received: from [192.168.0.102] (pfg@190.157.126.109 with ) by smtp108.mail.bf1.yahoo.com with SMTP; 23 Nov 2013 06:05:03 -0800 PST Message-ID: <5290B60D.2050006@FreeBSD.org> Date: Sat, 23 Nov 2013 09:05:01 -0500 From: Pedro Giffuni User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:24.0) Gecko/20100101 Thunderbird/24.1.0 MIME-Version: 1.0 To: Cedric Blancher Subject: Re: O_XATTR support in FreeBSD? References: <528FB6BA.7040606@FreeBSD.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Freebsd hackers list , Richard Yao X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 Nov 2013 14:08:09 -0000 On 23.11.2013 02:13, Cedric Blancher wrote: > On 22 November 2013 20:55, Pedro Giffuni wrote: >> Well ... >> >> According to: >> >> https://wiki.freebsd.org/ZFS >> >> We do support Extended Attributes on ZFS but they differ from the ones in >> Solaris (and Linux). > Well, we need the one specified in the NFSv4 standard. The Linux > extended attributes are pretty much useless because they are size > restricted (typical attribute size here is in the GB range, and for > example NIH and CERN have even much bigger sizes), can't be accessed > like normal files and are incompatible to Window's Alternate Streams. > > Ced I was unaware of a standard for EA beyond the old posix draft. The reason for Extended Attributes is supporting ACL and we support both the draft posix and the NFS/win style ACLs. Not sure about the status of NFSv4. The guys in the posix-1e list should know better. regards, Pedro.